python下载文件记录黑名单的实现代码
具体代码如下所示:
#!/usr/bin/python # -*- coding: GBK -*- # -*- coding: UTF-8 -*- from ftplib import FTP import os import datetime ftp_server = '127.0.0.1' # 对应ftp服务器地址 username = 'ponshine' # 用户名 password = '1qaz2wsx' # 密码 ftp_path = '/GBCC/' # ftp目录 local_path = "C:\F\python\pythonwangtest\wyjj2\\" #本地的目录 # 连接FTP def ftpconnect(): ftp = FTP() ftp.set_debuglevel(2) # 打开调试级别2,显示详细信息 ftp.connect(ftp_server, 21) # 连接 ftp.login(username, password) # 登录,如果匿名登录则用空串代替即可 return ftp # 获取当前的年月日时分秒 def getdatetime(): i = datetime.datetime.now() date = ("%s%s%s%s%s%s" % (i.year, i.month, i.day, i.hour,i.minute,i.second)) return date # 需返回才能取值 # 获取当前的年月日 def getdate(): import datetime i = datetime.datetime.now() date = ("%s%s%s" % (i.year, i.month, i.day)) return date # 需返回才能取值 def downloadfile(remotepath, localpath): ftp = ftpconnect() # 连接ftp print ftp.getwelcome() # 显示ftp服务器欢迎信息 ftp_filename = ftp.nlst(remotepath) # 运用nlst()获取文件名 print 'ftp_filename: ', ftp_filename # ftp上的文件名 for eachfile in ftp_filename: # 循坏取文件名 if eachfile.endswith('.AVL'): localpath_files = eachfile.split("/") localpath_file = localpath_files[len(localpath_files) - 1] # 文件名:localpath_file= GBCC_201611102155_01.AVL print "localpath_file--->" + localpath_file # 创建记录下载文件名的文件名 writefiletext = local_path + getdate() + ".txt" # 记录下载后的文件名 print "writefile_text--->" + writefiletext if os.path.exists(writefiletext): print writefiletext + "is exists" else: print writefiletext + "is not exists" makefile = open(writefiletext,"w+") makefile.close() files = open(writefiletext, "r") # 打开黑名单表 print "writefiletext--->" + writefiletext try: all_the_text = files.read() print "all_the_text-------》" + all_the_text if all_the_text.__contains__(localpath_file): print "文件已下载,不需要重复下载" else: print "文件没有下载,现在开始下载" bufsize = 1024 # 设置缓冲块大小 fp = open(localpath + localpath_file, "wb+") ftp.retrbinary('RETR ' + eachfile, fp.write, bufsize) # 下载文件 fo = open(writefiletext,"ab+") fo.write(localpath_file + "\n") # 将每个文件名写入文件 fo.flush() # 刷新文件 fo.close() fp.flush() finally: print "结束了" files.close() ftp.set_debuglevel(0) ftp.close() if __name__ == "__main__": downloadfile("/GBCC", "C:\F\python\pythonwangtest\wyjj2\\")
补充:python 黑名单过滤
需要过滤一些词语
写了下面这个函数,在blacklist 文件中添加需要过滤的词语
#过滤黑名单列表中出现的 def in_lists(str): str_lists=[] fd = open('./filter/blacklist') for line in fd.readlines(): str_lists.append(line.strip()) if str in str_lists: return 0 else: return 1
通过 python 自带的 filter函数 调用, in_lists ,filter函数会过滤掉 bool 值为 1 的列表中的元素
filter( in_lists , urls )
总结
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